By Matt Hladik Legendary ESPN college basketball analyst Dick Vitale is continuing to undergo treatment after being diagnosed with cancer last year. Tomorrow is a big day for Dickie V. He announced on Twitter Monday that he will have bloodwork and a PET scan done to check on the status of his cancer. “My MARCH MADNESS starts TUES.8 AM as I report for bloodwork & a PET SCAN that will give my Dr. Rick Brown an analysis of my cancer & see if the chemo treatments have been successful,” Vitale said. “[Prayers] for good news. Just a way of life for ALL cancer patients!” Vitale, who underwent cancer …